Home / 18,159.87-25,002.68-15,496.59

Finding the Fourth Proportional to 18,159.87, 25,002.68 and 15,496.59

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Solution

The fourth proportional to 18,159.87, 25,002.68 and 15,496.59 is: 21,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.87 : 25,002.68 = 15,496.59 : x
  2. Step 2: Convert to fraction form
    18,159.87/25,002.68 = 15,496.59/x
  3. Step 3: Cross multiply
    18,159.87x = 25,002.68 × 15,496.59
  4. Step 4: Simplify right side
    18,159.87x = 387,456,194.59
  5. Step 5: Solve for x
    x = 387,456,194.59/18,159.87
  6. Step 6: Final answer
    x = 21,335.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.